Question: How many amps does a 50 amp RV use?

So a 50-amp RV outlet is really closer to 80 amps (100 amperes x 0.80 = 80 amperes) if youre in constant power draw mode. And space heaters can definitely demand constant power. Just one more thing to know about electricity. And yes, your house wiring has the same derated amperage percentage.

Is a 50 amp RV plug 120 or 240?

Even though the receptacle found in your RV is rated at 120 VAC, the 50-‐amp shore power is actually a 120/240 VAC four wire service (see Figure 1).

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